Autel Robotics EVO II Dual 640T Enterprise Bundle V3 Drone with Thermal Imaging - Manual (Page 52)

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Important
 The firmware update takes about 15 minutes. During the upgrade, do not turn
off the aircraft or remote controller, start the motor, or remove the SD card from
the camera.
 After the upgrade, the remote controller may be disconnected from the aircraft.
To pair them again, refer to Section 2.2.2.
5.2 Troubleshooting
Question 1: An error is found when the aircraft performs the self-check (the LED
indicator at the tail of the aircraft glows solid red).
 This is a hardware issue. Please contact Autel Robotics' customer support:
www.autelrobotics.com/page/contact .
Question 2: If the motor cannot start, check the following:
 Check whether the remote controller is paired with the aircraft.
 Check whether the remote controller is correctly calibrated.
 Check whether the aircraft is fully charged.
 Check whether the compass is correctly calibrated.
 Check whether the GPS is available (when you enable the beginner mode).
Question 3: If the aircraft cannot take off after you start the motor, check the
following:
 Check whether the aircraft is in a No Fly Zone.
 Check whether the aircraft is placed on a flat surface.
Question 4: Why is the flight time shortened?
 The common causes are low temperature and wind speed.
Question 5: There is no response from the remote controller when pairing it with the
aircraft.
 Check whether there is a metal object, mobile device or another remote
controller near.